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S. DEUTSCH AND E. L. GROSS.

MECHANISM FOR OPERATING GATES, DOORS, OR OTHER CLOSURES.

APPLICATION HLED IAN. 28. 1910.

1 ,3 1 1 1 1 3. Patented July 22, 1919.

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S. DEUTSCH AND E. L. GROSS.

MECHANISM FOR OPERATING GATES, DOORS, OR OTHER CLOSURES.

Patented July 22, 1919.

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'S. DEUTSCH AND E. L. GROSS.

MECHANISM FOR OPERATING GATES, DOORS, OR OTHER CLOSURES.

APPLICATION FILED- JAN. 28, 1 910.

1 ,31 1 ,1 1 3. Patented July 22, 1919.

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S DEUTSCH AND E. L. GROSS,

MECHANISM FOR OPERATING GATES, DOORS, OR OTHER CLOSURES.

APPLICATION FILED JAN. 28, I910.

1,3 1 1 ,1 1 3B Patented July 22, 1919.

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sIMN DEUTscH ANI) EDWARD L. eaoss, OF CHICAGO, ILLINoIs.

MECHANISM FOR OPERATING GATES, DOORS, OR OTHER OLOSURES.

To all whom it-may concern. 7

Be it known that we, SIMON DEUTSOH and ED ARD L. GRoss, both citizens of the United States, residingat Chicago, in the countyof Cook and State] of Illinois, have jointly invented certain new and useful -Im provements in Mechanism for Operating Gates, Doors, or other Closures, of which 7 the following is a description.

' lingelevators or other gates, doors ,or

portions of the mechanismshown Figs.

Our invention relates to mechanism adapted to be operated at will forcontrolclosures.

V Theobject of our invention is to provide kind described, and onenot liable to become a simple, cheap and reliable device of the deranged or inoperative when in service."

i To this end our invention consists in the novel construction, arrangement and combination of parts herein shown and described, and more particularly pointedout in theclaims. i

like or corresponding parts: p I

Figure 1,,is a side elevation ofour device. jEi'g. 2, isa'plan view of the same.

Fig. 3, is a detail ,of a portion of the controlling mechanism. H

. Fig. 4, isa diagrammatic view of ,a conlike or similar reference characters indicate venient method of arranging the electric wiring of our device.

locking mechanism for preventing reverse movement of the operating mechanism of the motor.

Figs. 6, 7 and '8 are enlarged details ofa convenientform of friction brake mecha-' nism for our device. Fig. .9 1s a. detail of an automatic cut-out switch for our device.

modified form of our device.

' Fig. 11, is an enlarged end elevation of the form of our mechanism shown in Fig: 10. I

Fig. 1c; is a perspective view of a slightly respectively of the. mechanism shown in Fig. 1-1. 1 f f f Figs. 14, 115 and '16 are enlarged details of 10 to 13 inclusive.

igs. '17 and 18 are side and end views sp t'i f y of a slightly modified form of our device.

Specification of Letters Patent.

venient method of wiring the or shaft, 3 a suitable base or p p p p "securedflto the cagel. 'In the accompanying drawings wherein gate to'be operated. The ably extends substantially longitudinally of the elevator and is provided with a pinion Patented July 22, 1919.

Application filed January as, 1910. Serial No. 540,528.

respectively of another form of our device.

Fig. 21 is a diagrammaticv'iew of a conform of our device shown inFigs. "19 and 20. V

Fig. 22 is a perspective view of an elevator shaft and the associated mechanism showing my improvement with parts of the electric wiringetc. shown diagrammatically. In the preferred form, our device con sists :of amovable power element or motor arranged to travel in a fixed path and adapted to cooperate independently with each of a series of fixed devices mounted adjacent said path and each controlling the operation of a door or other closure. In the drawings-our device is shown arranged for controlling the gates or guards of an elevator in which 1 "is a portion of the elevatorcage, 2is a' side wall of the elevator well frame rigidly A motor or other power element 4 of any suitable form is mounted upon the frame?) and connected by beveled g ears 5''6pa'ndspur gears 78 toa pinion 10 preferably positioned near the sideofwthe cagefl with the shaft 9011 which it, "is mounted extending substantially parallel tothe direction of movement of the cage. Any suitable means may be'provided adapted to cooperate with the pinion 10 for p operating any one of the elevator gates or Fig. 5, is an enlarged detail of a simple particular closure. In the form shown a shaft 11 is rotatably mounted in suitable bearings 1214L upon the wall 2 for each shaft 11 prefer- 15 rigidly secured thereto, adapted to cooperate with and be rotated by the pinion'lO whenthe elevator cage is in position to require the opening .of that particular gate. As shown the ends oi'i'all of the teeth upon the pinions 10 and 15 are beveled or sharpened to facilitateengagement between Figs." 12 and 13 are side andfplanviews the pinio'ns and the pinion 15 is of sufficient length to insure. suitable engagement and flexiblemelnber 17 will be wound upon the the free end of the member 18 "arranged to partially balance the gate where the gate moves upward in opening, or is otherwise rranged to be. closed by its own weight.

In the preferred construction suitable means are provided to prevent a too sudden and violent closure of the gate when released. As shown, a friction band 19 s provided upon the shaft 11 with a projecting part 20 adapted to engage a movable latch 21 secured to the bearing 12. The several parts .are so constructed and arranged that 1 when the shaft 11 is rotated to open the gate, the latch 21 will merely move and permit the band 19 to turn freely with the shaft,

when however, the shaft is rotated in the opposite direction the latch engages the'part .20 and'prevents further rotation of the band 19 in that direction, thereby checking the movement of the shaft and insuring the desired operation of the parts.

Suitable means are also provided to lock the operating parts of themotor against reverse movement so that when a gate is wholly or partially open the motor may be stopped without permitting the gate to return to its normal position. Any suitable means may be provided for this purpose. In the form shown, a finger 23 is pivotally attached to the frame 3 of sufficient length to engage the back of thebeveled gear 6 so that when the gear 6 is rotated to open the gate the free end ofthe finger 23 will rest lightly upon the back of the gear without interfering with its movement. In case however, the gear tends to move in the opposite direction the finger will jam against the back of the gear and lock it against movement in that y direction.

In the preferredconstruction an electric motor attached to the usual lighting circuit 1n the cage is provided for operating our device. The circuit for controlling the motor is diagrannnatically shown in'Fig. 4 in which 24 is argenerator or other source of electric energy connected by the conductor 25 to a movable terminal 26. A conductor 27 connects the opposite pole of the generator to' the motor 4 thence by conductor 28 to the movable terminal 29. The terminals 26 and 29 are so arranged that a slight longitudinal movement will bring them into contact simultaneously with the contact plates 30 and 31 whichare connected conductors 30 and 31- and an automatlc cutout 32 thereby closing the circuit to the motor and causing it to operate. As the closurenears the limit of its opening movement a part upon the gate engages the part 33 of the cut-out 32 and opens the circuit thereby stopping the motor and limiting the opening movement of the gate. Any suitable means may be provided for moving the terminals 26 and 29. In the form shown, a push button 35 which may be operated either by the hand or foot is provided in the cage with a part 36 having a beveled face adapted to engage the endof a part rigidly secured to the terminals to force them outward, a spring or other suitable means being provided to normally maintain the terminals at the inner limit of their movement.

In the form shown in Figs. 10 to 13 inclusive the motor 56 is connected by gears 3738 to a pinion 39 arranged to cooperate with a rack 40 attached directly to the gate to be operated,- the teeth of the pinion 39 and a portion of the rack teeth beingbeveled or sharpened at their ends, as shown in Figs. 14 to 16. In this form the rack-is of sufficient width to permit slight variations in the position of thecage. The wiring of In the form shown in Figs. 17 and 18 an electric magnetr41is mounted upon an arm 42 rigidly secured to the drive shaft of the motor 43 and a disk isrigidly secured to the winding drum 45 upon which the rope or 7 chain 46 for operating the gate is wound, the

several parts being constructed and arranged to operate as a magnetic clutch'to transmit po'werlfrom the motor to the winding drum. The operation is substantially the same as hereinbefore described. In the form shown in Figs. 19 and 20, an arm 47 is pivotally attached at one end to the gate 48 with its opposite end extending upward and positioned between a pair of suitable rollers 49 or otherwise maintained in position laterally but permitted to move longitudinally thereby providing for the 1 free movement of the gate which is mounted upon a slightly inclined track or otherwise provided with .meansfor normally maintaining the same in a closed position. In this form the motor conslsts of a solenoid 50 the plunger 51 of whlch is provided with ,a spring 53 or other suitable means arranged to normallyhold the plunger51 at the extreme outer limit of its movement. A lateral hook or finger 52 is provided near the free end of the plunger 51 suitablyformedto normally avoid engagement with the rollers 49 or other fixed parts upon the wall of the elevator shaft but adapted to extend to, and engage the lever 47 when the solenoid is energized and thereby open the gate and hold it open aslong as the current is supplied to the windings of the solenoid. When the plunger 51 is -retracted the finger 52 is not adapted to initially' engage the lever 47 and fo'rthis reason suitable means are preferably provided to prevent maintaining the electric circuit through the solenoid windings when the movable mechanism is not in position to cooperate with the fixed mechanism. In the form shown, the contact plates upon the wall 2 are of only suflicient length to cooperate with terminals upon the cage when the cage is in position at a door and to permit a reasonable variation in its position. At allother points it is obvious that the push button could not be operated. to close the circuit. The position of the cage therefore breaks the clrcuit and partially controls the operation of the mechanism permitting the plunger 51 to return to its normal position before the cage arrives at the next gate which it may be desirable to operate.

It is obvious that our device may be applied to either freight or passenger elevators or under any conditions where doors or gates are to be operated in connection with a movable car or cage, and where it is desirable to control the operating mechanism from the movable car.

Having thus described our improvement it is obvious that various immaterial modifications may be made in our device without departing from the spirit of our invention, hence we do not wish to be understood as limiting ourselves to the eXact form or construction shown.

What we claim as new and desire to secure by Letters Patent is:

1. A device of the kind described comprising a movable motor, a closure, means for locking the operating parts of said motor against movement in one direction, fixed mechanism adapted to periodically cooper ate with said motor to operate said closure, and means for controlling the operation of said motor.

2. A device of the kind described comprising a closure, a motor, means for locking .the operating parts of said motor against movement in one direction, and means for moving said motor in a fixed path, in combination with mechanism mounted adjacent said path adapted to periodically cooperate with said motor to operate said closure,

and means for controlling the operation of said motor.

3. A device of the kind described comprising a closure, a motor, means for locking the operating parts of said motor against movement in one direction and means for moving said motor in a fixed path, in combination with mechanism mounted adjacent said path adapted to periodically cooperate with said motor to operate said closure, and means partially controlled by the position of said closure for controlling the operation of said motor.

4. In an elevator, a motor carried thereby, gate-operating mechanism comprising a motor-operated driving element on the car and a revoluble gate-opening shaft on the housing, means for causing said driving, element to cooperate with said shaft when the floor of the car is substantially level with the floor of the building, and means for closing the circuit through said motor.

5. In an elevator, a motor carried thereby, gate-operating mechanism comprising a motor-operated driving element on the car and a revoluble gate-opening shaft on the housing, means for causing said drivingelement to cooperate with said shaft when the floor of the car is substantially level with the floor of the building, and cooperating means on the car and housing for closing the circuit through said motor.

6. Gate operating mechanism for eleva- V tors comprising a motor carried by the car,

a shaft revolubly mounted on the housing of the elevator, means for operatively connecting said motor with said shaft to revolve the latter when the floor of the car is substantially level with the floor of the building, means for opening the gate when said shaft is revolved, means for closing the circuit through said motor when the floor of the car is level with the floor of the building and means for opening the circuit when the gate is open.

In testimony whereof we have hereunto signed our names in the presence of two subscribing witnesses.

SIMON DEUTSCH. EDWARD L. GROSS. WVitnesses:

BURTON U. HILLS, BLANOHE CHALMERS.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents,

Washington, D. G. 

